While most Western-trained archeological researchers have merely accepted Mayan mathematics as a unique, if baffling, phenomenon, of no value whatsoever to the modern world, Jose Arguelles recognised early on that the Maya were practicing a time-science well in advance of anything we know about and that they deliberately left clues as to its nature. The author has devoted his life to unraveling the Mayan mathematical code which demonstrates that time is indeed the fourth dimension. The Mayan cosmological perspective is much more profound than our traditional Western view and this book sets out the theoretical foundations necessary to understand.